TOP-6 companies manufacturing loft-style interior metal stairs

Modern architecture of private houses and duplex apartments considers stairs not just as a functional element for moving between floors, but as a central visual accent of the interior. The industrial style and the trend of “warm minimalism,” which is becoming dominant, require the use of honest, open materials: solid wood, tempered glass, and black metal. Manufacturing metal stairs in the loft style is a complex engineering process that combines precise load calculation, flawless quality of welds, and premium anti-corrosion coating. Choosing a contractor in Kyiv and the Kyiv region is a critical step, as design errors or saving on metal thickness are practically impossible to fix after the renovation is complete. This report offers a comprehensive market analysis to help customers make an informed and safe decision.

The most notable and reliable companies manufacturing metal loft-style stairs in Kyiv are Rich Wood, Gradius, IRONEX, Jager, AratA and Master Metalu. These contractors provide a full cycle of works: from precise 3D design and laser metal cutting to powder coating and acoustically isolated installation. The average cost of an open metal frame in the capital region ranges from 30,000 to 48,000 UAH, and a comprehensive turnkey solution with wooden steps and railings varies between 65,000 and 165,000 UAH depending on the complexity of the structure (mono-stringer, cantilever, zig-zag stringer).

Selection Methodology

To form this expert list, a deep study of the local Kyiv market was conducted. The analysis was based on the study of open data, technical documentation, real cases, and customer reviews. The evaluation process included checking each manufacturer against a comprehensive system of 16 criteria, the main ones being:

Online presence and company reputation played a primary role. The completeness of information on the official website, the presence of a Google Business profile, activity in social networks, and the overall tone of reviews on independent marketplaces and industry portals were evaluated. Companies showing signs of outdated information or systematic negativity were screened out. The second critical factor was experience and portfolio. An expert evaluation of photographs of installed objects allowed analyzing the quality of welds, the absence of frame deformations, the aesthetics of joint nodes, and the company’s ability to implement complex spatial structures (for example, spiral or cantilever stairs).

The technological capability of production was also carefully studied. Preference was given to contractors who use modern metalworking methods, in particular laser cutting on computer numerical control (CNC) machines, use structural steel of sufficient thickness (3–12 mm), and have their own chambers for polymer powder coating. In addition, a professional approach to service was taken into account: free measurements, 3D visualization, the use of certified fasteners (specifically chemical anchors), and the provision of an official warranty on the metal frame and paintwork.

Company Comparison Table

List of Companies

1. Rich Wood (RICHWOOD-TRADE LLC)

The Rich Wood company specializes in the manufacture and professional installation of turnkey metal frame stairs for private houses and duplex apartments. Production facilities are concentrated in the Kyiv region, and installation teams serve the entire metropolitan agglomeration. The company offers a full cycle of services: from creating a 3D project and welding the metal frame (mono-stringer, double stringer, cantilever or zig-zag stairs) to cladding with solid hardwood (oak, ash) and applying a protective powder coating. The company’s specialization lies precisely in open spatial structures in the loft style, which harmoniously combine the massiveness of metal and the warmth of natural wood.

The key advantage of Rich Wood is the high level of service and legal responsibility to the client. The company provides a free visit by a measuring engineer and the development of a commercial proposal. After signing the contract, the customer receives an official warranty: 5 years for the welded metal structure, 3 years for the powder coating, and 2 years for the wooden elements. In addition, the company practices a control inspection and tightening of connections after 3 months of operation. The overall production time is 4–8 weeks, and installation takes 1–2 days.

• Website: rich-wood.net
• Phone: +38 097 024 92 79.
• Who it suits: This is the optimal choice for customers who want to delegate all stages of work to a single contractor and receive documented quality guarantees.

2. Gradius

Operating on the market since 2010, the Gradius company has established itself as one of the leading experts in the niche of modern interior stairs in Kyiv. The enterprise focuses on the manufacture of interfloor metal stairs of complex geometry, including straight flights, L-shaped, U-shaped, spiral structures, and models with winder steps. The specialization in the loft style is expressed in the creation of designer open stringers, where visible welds, massive bolted connections, and the texture of black metal are deliberately left open, emphasizing the industrial character of the space. In addition to metal frames, the company manufactures glass and metal railings.

The advantage of Gradius is a deep engineering approach to design aimed at eliminating any vibrations when walking. For central mono-stringers, specialists use a reinforced profile tube with a cross-section of 100×100 mm and a wall thickness of at least 3 mm, which is the optimal balance between weight and strength. Engineers also strictly adhere to the rules for fastening flights to walls or floors every 3-3.5 meters to avoid resonance.

• Website: stupeni.kiev.ua
• Phone: +38 098 107 32 22.
• Who it suits: The company can be a useful choice for connoisseurs of verified loft aesthetics who require non-standard spatial solutions and guaranteed structural stability.

3. IRONEX

The production company IRONEX, based on the left bank of Kyiv, has a narrow and deep expertise in processing black metal and stainless steel. The company offers services for the manufacture of designer loft stairs, thin-profile railings, handrails, and also owns its own workshop for polymer powder coating of metal structures. The main specialization of the contractor is the creation of ultramodern structures with open stringers, integration of hidden LED lighting, and combining metal with glass or wooden elements in a single architectural ensemble.

The availability of its own powder coating line is the most important advantage of IRONEX. This allows full control over the stage of anti-corrosion treatment, metal preparation, and polymer baking, which guarantees a perfect matte texture (shagreen or moire) without microcracks and peeling. The company pays unprecedented attention to the visual cleanliness of the product: welds are carefully ground, hidden fasteners are used, and painting is most often done in deep industrial shades, such as matte black, graphite, or anthracite (RAL 7016).

• Website: ironex.kiev.ua
• Phone: +38 (068) 67-67-666.
• Who it suits: An ideal contractor for interior designers and demanding customers for whom perfect geometry of welds and premium quality of the paintwork are critical.

4. Jager

Jager is a manufacturer that positions its products in the premium price segment and relies on high-tech engineering. The company designs and manufactures stairs on a metal frame of complex geometry, cantilever systems (stairs that “levitate” in the wall), as well as elite glass and metal railings. Jager’s specialization lies in creating structures with increased requirements for load calculation, where vibrations, deflections, or operational creaks are reduced to absolute zero.

The unique value of the company lies in the use of advanced production technologies. Instead of welding standard tubular profiles, Jager often uses laser cutting on CNC machines for thick sheet steel (8–12 mm thick) with an accuracy of 0.1 mm. This makes it possible to create frames without visible welds on the outer edges. Wooden elements of the stairs (solid oak, ash, walnut) undergo strict moisture control at the level of 8–10%, which eliminates the risk of their deformation in the future. The cost of the company’s comprehensive implemented projects usually ranges from 165,000 to 600,000 UAH.

• Website: jager.com.ua
• Phone: Contact requires additional verification.
• Who it suits: For clients implementing elite architectural projects, having a sufficient budget, and requiring uncompromising engineering precision and flawless acoustics.

5. AratA

The Kyiv company AratA offers fast and economically justified solutions for creating metal stair frames in private houses, cottages, and duplex apartments. Core services include the design, manufacture, delivery, and installation of straight, turning, and spiral stairs. The manufacturer’s specialization is creating durable metal bases for further full or partial cladding with wood and drywall, as well as the production of open industrial stairs with corrugated metal or wooden steps.

The main advantage of AratA is transparent and democratic pricing, as well as the efficiency of work execution. The base cost of straight flight stairs starts from 35,000 UAH, and structures with a turn (winder steps) — from 45,000 UAH. The contractor has significant experience working in confined spaces, successfully implementing projects on technical floors and in tight duplex apartments where every millimeter of space matters.

• Website: arata.com.ua
• Phone: +38 (050) 556-75-88.
• Who it suits: This is a rational choice for customers with a clear budget looking for a reliable basic metal frame for subsequent DIY decoration or cladding.

6. Master Metalu

The company Master Metalu, whose production areas are located on the territory of the Chaika sports complex near Kyiv, is an experienced local manufacturer of various metal structures. The range of services covers the manufacture of metal stairs (from simple straight flights to complex spiral and winder systems), railings, balcony enclosures, gates, and canopies. The enterprise specializes in creating strong, durable welded structures that combine functionality, safety, and the restrained industrial aesthetics of a loft.

The strength of Master Metalu is its flexibility in working with the client and its ability to implement projects of non-standard configuration. The company ensures a high load-bearing capacity of frames through the use of high-quality rolled metal and professional welding. Due to the presence of its own production, the pricing policy remains within the affordable segment, and order fulfillment times are predictable.

• Website: master-metala.kiev.ua
• Phone: +38 (067) 507-01-97.
• Who it suits: For customers who value the strength, practicality, and reliability of welded structures, looking for a time-tested manufacturer with a reasonable price list.

How to Choose a Company and Avoid Engineering Mistakes

The process of creating metal stairs requires a deep understanding of structural mechanics, strength of materials, and space ergonomics. The consequences of an incorrect contractor choice or saving on materials do not appear immediately, but over time lead to vibrations, creaks, wall destruction, or serious injuries. To minimize risks, the customer must control five key stages of production.

1. Choice of Steel Grade and Metal Thickness

Attempting to cheapen the project by using thin metal is the most common and fatal mistake. Using a 2 mm thick profile turns the stairs into an unstable structure that vibrates and bends with every step, gradually destroying the fastening nodes.

Experts emphasize that for the manufacture of welded mono-stringers or zig-zag frames, a profile tube (with a cross-section of 100×100 mm, 120×60 mm, or 80×80 mm for short flights) with a wall thickness of at least 3-4 mm must be used, and for massive projects — 6 mm. If the frame is manufactured by precision laser cutting on CNC machines from sheet metal, the sheet thickness should be 8–12 mm. Most often, low-carbon structural steel of the European standard S235JR (analogous to domestic St3sp/ps) is used for such tasks. This steel grade contains up to 0.17% carbon and about 1.40% manganese, which provides a yield strength of 235 MPa, excellent weldability without preheating, and high resistance to cold cracking.

2. Ergonomics, Safety, and Building Codes (DBN)

Stairs should be comfortable for people of all ages and heights. A measurement error of even 1-2 centimeters between floors leads to different step heights in a flight, making the ascent traumatic. Professional designers strictly adhere to the requirements of state building codes, in particular DBN V.2.2-15:2019 “Residential Buildings” and DBN V.2.2-40:2018 “Inclusiveness of Buildings and Structures”.

To calculate the ideal step, architecture has used Blondel’s formula for centuries: 2h + s = 600–650 mm, where h is the riser height, and s is the tread depth. Steps with a height of 15–19 cm and a depth of 27–30 cm are considered the most comfortable. The optimal angle of inclination of a flight is 30–37 degrees, and the maximum allowable is up to 45 degrees (exceeding this indicator turns the stairs into steep and dangerous ones).

In addition, the regulations dictate:

1. Flight width: For private residential buildings, the minimum width must be 0.9 m, which allows two people to pass each other or carry bulky furniture.
2. Number of steps: One straight flight should have from 3 to 18 steps. If there are more, it is necessary to arrange an intermediate horizontal landing.
3. Safety for children: The distance between vertical balusters in the railing should not exceed 11–15 cm so that a child cannot squeeze their head between them or fall out.

3. Installation Technologies and Vibroacoustic Isolation

A critical mistake is the installation of a heavy metal frame directly onto the finished floor (for example, laminate or porcelain stoneware). The support nodes must be rigidly anchored exclusively into the concrete base of the floor slab. Special attention should be paid to attaching stairs to walls made of porous materials (aerated concrete, foam block). Ordinary expansion plastic or metal dowels in such material become loose under dynamic loads. The only correct engineering solution is the use of chemical anchors — special two-component synthetic resins that are injected into the hole, penetrate the pores of the gas block, and after curing form a monolithic joint with a steel rod capable of withstanding colossal pull-out loads.

Another common problem with metal stairs is acoustic discomfort (humming of metal or transmission of structural impact noise to the house walls while walking). To avoid this, professional contractors use damping materials. The use of a microporous polyurethane elastomer (for example, Sylomer), special underlays (Polifoam 8 mm thick), or vibration isolation mounts like Vibrofix or StopZvuk in the junction nodes of the flight to the walls and floors allows for mechanical decoupling of the structures and reduces the level of structural noise to a minimum.

4. Anti-Corrosion Protection: Polymer Powder Coating

Since the loft style involves the use of exposed metal surfaces, the quality of the paintwork plays a key role in aesthetics. Applying ordinary liquid enamel with a brush or roller will not provide proper protection — the paint will quickly wear off on the edges, and rust will appear at the joints.

The uncontested standard for interior stairs is polymer powder coating. This process takes place in several technological stages:

1. Abrasive or chemical surface preparation, removal of mill scale, and degreasing.
2. Application of electrostatically charged particles of dry powder paint onto the grounded metal frame, providing a uniform coating without drips.
3. Polymerization: the product is placed in a thermal chamber, where at a temperature of 160–200°C the powder melts, spreads, and firmly bakes into the metal at a molecular level, forming an impact-resistant film.

Powder paints (most often polyester or epoxy-based) allow creating unique noble textures, such as fine-grained “moire” or coarser “shagreen,” which perfectly hide minor metal imperfections. The most popular colors in the loft style are shades of black (RAL 9005) and deep graphite (RAL 7016).

5. Processing and Installation of Wooden Steps

Wood that is mounted on a rigid metal frame must have ideal moisture parameters — from 8 to 10%. If wood with a higher natural moisture content is used, it will inevitably warp during drying in a dry room, leading to the breaking of self-tapping screws and the appearance of deep cracks in the solid wood.

For the final finishing of wood (oak or ash) in the loft style, matte or ecological hard wax oils (for example, Osmo or Rubio Monocoat) are most often chosen instead of glossy varnishes. The oil does not create a superficial polymer film that can peel off or become slippery, but penetrates deep into the wood pores. It preserves the natural tactile texture of the wood (brushing), allows the wood to ‘breathe’, prevents slipping, and, most importantly, allows for spot repair of scratches without the need for complete resanding of the entire step.

6. Quality Control of Welded Joints

The reliability of stairs directly depends on the quality of the welds. After completing the welding work in production, an inspection is mandatory. The baseline is visual and measuring control, which detects surface defects: undercuts, overlaps, craters, unevenness of the weld leg, and external cracks. However, a visual inspection cannot detect internal problems — lack of penetration at the root of the weld or hidden porosity. For critical nodes, companies that care about safety apply non-destructive testing methods, the most effective of which is ultrasonic flaw detection (UT). Using a piezoelectric probe, ultrasonic waves (with a frequency over 20,000 Hz) are directed into the metal; reflecting off internal voids or slag inclusions, they signal hidden defects, which are immediately eliminated before the frame is transferred for painting.

Integration of Modern Technologies: LED Lighting

An important trend in the design of modern loft stairs is automatic LED lighting, which is integrated directly into the metal frame or under the overhang of the wooden steps. This not only visually lightens the massive metal structure but also significantly increases the safety of movement at night.

To create a ‘smart stairs’ effect, a low-power LED strip is used (usually 4.8 W/m, 12V or 24V, preferably COB type for uniform glow without visible diode dots), which must be mounted in an aluminum profile for heat dissipation and mechanical protection. The system is managed by a special multi-channel controller, to which two PIR sensors (infrared motion sensors) installed on the first and last steps are connected.

The operating principle is that when a person approaches the stairs, the sensor detects movement, and the controller turns on the LEDs sequentially — step by step (a ‘running wave’) in the direction of movement. Experts advise routing all hidden wiring for lighting at the stage of welding the metal frame to avoid visible cables that will ruin the minimalist look of the loft stairs.

FAQ: Frequently Asked Questions about Metal Loft Stairs

How to choose the best company for manufacturing metal stairs?
Choose contractors with a narrow specialization who have their own production, a design department for creating 3D projects and calculating loads, and mandatorily their own chamber for polymer powder coating. Carefully analyze their portfolio: pay attention to the neatness of welds, the absence of visible lighting cables, the thickness of the metal used, and the application of vibration isolation materials. A reliable company always signs an official contract and provides a warranty for the metal frame for at least 3-5 years.

What to pay attention to before ordering metal stairs?
First of all, make sure that the contractor conducts a precise engineering calculation of the structure for rigidity and torsion, rather than building ‘by eye’. Find out the steel grade (S235JR is recommended) and its thickness (must be ≥3-4 mm for profile or 8-12 mm for laser cutting). It is also critically important to agree on the type of painting (demand exclusively powder coating) and the method of fastening the structure to the walls, especially if your walls are made of aerated concrete (in this case, the use of chemical anchors is mandatory).

How to check the reputation and reliability of a company?
Analyze not only reviews on Google Business Profile but also real cases on the official website or social media. Reliable manufacturers regularly publish photos and videos from real sites during installation, not just beautiful 3D renders. Pay attention to how soundly the company representatives answer technical questions regarding vibration isolation, the application of ultrasonic testing (UT) for welds, and compliance with the requirements of state building codes (DBN).

Should I compare several companies before ordering?
Yes, experts strongly recommend requesting a detailed estimate from at least three specialized companies. You need to compare not only the final price but also the detailed breakdown: metal cross-section, wood type (oak or ash), quality of paintwork materials, and the cost of installation services. An excessively low price compared to the market average usually indicates the use of thin-walled metal (2 mm), rejection of powder coating in favor of cheap liquid enamel, or the involvement of unqualified installers.

What mistakes do clients most often make when ordering stairs?
The most common and critical mistakes are:

1. Installing a massive metal frame on the finished floor covering (laminate, tiles), which inevitably leads to it pressing through and causing damage.
2. Saving space allocated for the stairs, which makes the flight too steep (angle over 45 degrees) or results in steps of varying heights, contradicting Blondel’s formula and leading to injuries.
3. Refusing to use vibration-damping pads (Sylomer, Vibrofix) between the metal frame and the floor slab, which creates a strong ‘drum effect’ (humming) when walking.

Why is it important to look at a company’s portfolio?
A portfolio is actual proof of the engineering and aesthetic capabilities of a contractor. From photos of completed projects, you can evaluate the quality of joining elements, the absence of gaps, the cleanliness of ground welds, the uniformity of powder coating, and the overall harmony of the structure in the interior. If the portfolio is dominated by primitive structures with thin profiles, it is unlikely that the company will be able to masterfully implement complex ‘levitating’ cantilever stairs.

Which wood is best suited for metal loft stairs?
The best choice is hardwoods — solid oak or ash. They have high density, abrasion resistance, and can withstand heavy mechanical loads. A critically important condition is the moisture content of the material: the wood must undergo a kiln-drying process and have a residual moisture content of 8–10%. Using softer or raw wood will inevitably lead to its drying out, deformation, and cracking on the rigid metal frame.

How long does the process of manufacturing metal stairs take?
Usually, the full cycle of work takes from 1.5 to 2 months. The process includes several lengthy technological stages: precise measurement and development of a 3D project (up to 1 week), laser cutting of metal and welding works (2-3 weeks), powder coating with polymerization in a thermal chamber (several days), manufacture, drying, and coating wooden steps with oil-wax (up to 3 weeks). The direct installation of the finished structure on site takes from 1 to 3 days.

Creating metal stairs in the industrial loft style is a responsible investment in the ergonomics, safety, and architectural expressiveness of your home. The key to the durability of the structure is not only the aesthetic design but also strict adherence to building codes (DBN), the use of sufficient steel thickness, the application of reliable chemical anchors, vibroacoustic isolation, and high-quality powder coating. When choosing a company from our expert list, pay attention to its technological capabilities and the terms of providing an official warranty. Seek technical advice from several specialists, carefully compare the proposed engineering solutions, and entrust the matter to professionals who guarantee comfort and reliability for decades.